Method and apparatus for controlling admission to a communications network
CA 2178746 C · Owner: British Telecommunications Public Limited Company · Inventors: Key, Peter Bernard; Griffiths, Thomas Rhodri; Atkinson, Andrew David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a method of controlling acceptance of a call by a network node (2 and 3) in a communications network (1) having a required quality of service comprising the steps of determining an infimum of a function of the probability of the node being overloaded if the call is accepted and determining from that infimum the effective bandwidth of the calls to the node if that call should be accepted and determining a corresponding quality of service. The corresponding quality of service is then compared with a quality of service that is required for satisfactory operation of the network. If the quality is maintained or exceeded then the call is accepted for the node.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 2, 1994 and granted October 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 2, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.